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CRKT Knife Innovations Archive

At CRKT we have always focused on bringing you the most innovative new ideas in the knife and tool industry. Our purpose is not just to be different, but to provide useful improvements, including fast folder opening systems, folder locking systems, carry systems, serrations, new multitools, and even entirely new product concepts. That may explain why leading custom knifemakers and industrial designers come to us with their ideas, knowing that we are open to developing new products. The following examples in this web section highlight some of our most notable and successful innovations, but we want to stress that this section really has no end, because we expect to add more exciting products in the coming months.


 

FOLDER OPENING SYSTEMS


 
Fulcrum-Opn1

Fulcrum™ action

What it is: A unique patented folder opening system, invented by Charles Kain, which opens the blade by pressing the left side of the frame down, then pulling it back to achieve lock-up.

Benefits: A simple and fast opening system which requires no thumb studs or nail nicks, yielding a smooth, clean design.

How it works: A pin in the frame mates with a precisely contoured slot in the blade which gives the push-then-pull blade opening action. A locking liner holds the blade in the open position, and the blade is closed in the same manner as on other locking liner folders.

Found on CRKT models: Fulcrum™, Mini Fulcrum™, Fulcrum™ Flame.

Patents: the Fulcrum mechanism is protected by U.S. Patent No. 7,513,045.

Fulcrum-Opn1 Fulcrum-Opn2
Flame-Open-2
Flame-Open-3
FLAME_KNIFE_edge_exposure
 
Yea-Go-Open

Arcuate Opening System (A.O.S.™)

What it is: A unique patent-pending folder opening system, invented by Ed Van Hoy, which can open a folder quickly or slowing by pressing a contoured thumb disk.

Benefits: Knives equipped with A.O.S.™ are very difficult to open accidentally, because opening requires a press-and-release action. By manipulating the thumb disk, the blade can be opened and locked instantly, or slowly, as desired.

How it works: The system uses an arced internal frame slot and a spring loaded blade pivot, which working together, allow the blade to spring open only when the thumb disk is pressed and released properly.

Found on CRKT models: Yea-Go®

Patents: A.O.S.™ is patent pending.

Yea-Go-Open Yea-Go-AOS
 
Glide-Lock-Open-1

Glide Lock™ mechanism

What it is: A patented folder opening and locking system designed by Charles Kain which is both a lock and opening tang.

Benefits: The Glide Lock™ is simple, easy to use, and lightweight. It locks the blade in both the open and closed positions.

How it works: A sliding stainless steel mechanism is hidden within one bolster. Slide the bolster out, and it creates a tang to rotate the blade open. Then slide the bolster back to lock the blade. To close the blade, slide the bolster out and rotate the blade closed with your index finger.

Found on CRKT models: Glide Lock™ and Glide Lock™ 2.

Patents: The Glide Lock™ is covered by U.S. Patent No. 7,581,321.

Glide-Lock-Open-1 Glide-Lock-Open-2
 
L-Close-1-LFT

Snap Lock™

What it is: A side opening locking system developed by Ed Van Hoy.

Benefits: This action is exceptionally strong on lock-up, and allows left or right hand opening depending on clip placement. It allows for minimal, skeletonized knife designs.

How it works: The wishbone frame has grooves which mate to tabs on the blade. As the frame is gripped more firmly, the lock-up becomes stronger. The blade is released by pressing a cam which slightly spreads the wishbone frame.

Found on CRKT models: Snap Lock™, Snap Lock™ 2.

SL-Close-1-LFT SL-Close-2-LFT
SL-Open-1-LFT
SL-Open-2-LFT
Snap-Lock-Opening


SERRATIONS


 
 
MUK-Cord-Sm

Veff™ Flat Top Non-Stick Serrations

What it is: A unique design invented by Tom Veff with smoothly scalloped serrations which improve cutting through a variety of materials.

Benefits: Gives faster slicing without snagging when cutting both through stranded materials such as rope, and soft materials, such as bait fish.

How it works: The serrations are smoothly scalloped with rounded flat tops rather than sharp tips.

Found on CRKT models: M.U.K.™.

MUK-Cord-Sm
 
Tbolt-Combo09-Sm

Thunderbolt™ Tip Serrations

What it is: The first application of serrations on the tip grind of a modified dual-grind Tanto blade.

Benefits: Allows sawing action of the blade tip when penetrating materials such as canvas or fiberboard.

How it works: The fine pointed serrations are placed near the penetration point of the blade.

Found on CRKT models: Thunderbolt™ Models 7131, 7133.

Tbolt-Combo09-Sm


SHARPENING


 
Edgie2-Internal-CU

Edgie™ self-sharpening knives

What it is: A self-sharpening folding knife line invented by Maj. Howard Pope.

Benefits: The knife sharpens itself, so no periodic sharpening is needed. In addition, the microserrated blade edge helps cutting action when cutting cardboard, rope, cord, garden stalks, and even ripe tomatoes.

How it works: Diamond-coated spring steel sharpeners are built into the frame. Each time an Edgie model is opened or closed, the sharpener hones the blade.

Found on CRKT models: Edgie, Edgie 2.

Patents: Edgie models are protected by U.S. Patent No. 6,643,934b2.

Edgie2-Internal-CU
 
 
Slide-Sharp-A

Slide Sharp™ knife honing system

What it is: A patented system invented by Steve McCowen and Charles Kain for accurately honing the edges of most conventional plain-edged dual-grind sport, tactical, and kitchen knives.

Benefits: A fast and easy way to restore edges at the correct angle. Does not remove excessive steel nor change the edge angle.

How it works: The nylon guides (15 degrees and 20 degrees) position the knife edge against a porcelain rod (Fine and Coarse included). The user then moves the blade in a circular "locomotion" action, aided by a spring. Final hand finishing of the tip edge may be necessary.

Found on CRKT models: Slide Sharp™.

Patents: Slide Sharp is protected by U.S. Patent No. 7,467,991.

Slide-Sharp-A Slide-Sharp-B Slide-Sharp-C
 


BLADE SHAPES


 
 
Two-Timer-Flipper

K.I.S.S.® Two-Timer™

What it is: A two bladed knife with a Tanto Chisel-Point blade and a Pen Knife blade which folds into a milled slot in the Tanto blade. It is a collaboration between Ed Halligan and Ed Van Hoy.

Benefits: Provides a Tanto blade for heavy jobs and smaller drop point blade for detail cutting.

How it works: The Tanto blade has a Chisel-Point grind on the front and is flat on the backside so that when the blade is closed it seals against the frame like Original K.I.S.S.® models. By milling a relief in the larger blade, the second smaller blade can be folded neatly within the Tanto blade using a minimal frame and single pivot.

Found on CRKT models: K.I.S.S.® Two-Timer™

Two-Timer-Flipper Two-Timer-Slot
 


TOOL SYSTEMS


 
Flux-Knife-Driver-Install

Flux® carabiner tool system

What it is: A unique modular tool system which allows various components to be carried on lightweight aluminum carabiner rails.

Benefits: Gives ready access to tools. Allows you to carry only the tools you need for convenience. Lightweight and ergonomic.

How it works: Tool components can slide and lock onto carabiner rails. Tools include a folding knife, hex bit driver, wine tool, L.E.D. flashlight, and flash memory drive.

Found on CRKT models: Flux® individual and component packs.

Flux-Knife-Driver-Install Flux-On-Pack-Orange-Med
 


MINIMAL KNIVES


 
HUG-Lock-Sm

H.U.G.™ two-piece folders

What it is: This minimal series designed by Ed Halligan is a two-piece knife with a single-sided drop point blade, a mid-frame lock, and an added Zytel scale for comfort.

Benefits: Simplicity, light weight, small size.

How it works: The single-side blade grind on this series seals against the frame and scale for improved comfort and safety. The mid-frame lock is difficult to release accidentally, giving more work task utility.

Found on CRKT models: H.U.G.™, H.U.G.™ 2

HUG-Lock-Sm
 
Snap-Lock-Group

Snap Lock™

What it is: Both models feature a side opening locking system developed by Ed Van Hoy.

Benefits: This action allows for minimal, skeletonized knife designs with lightweight wishbone frames. They are exceptionally strong on lock-up, and allow left or right hand opening depending on clip placement.

How it works: The wishbone frame has grooves which mate to tabs on the blade. As the frame is gripped more firmly, the lock-up becomes stronger. The blade is released by pressing a cam which slightly spreads the wishbone frame.

Found on CRKT models: Snap Lock™, Snap Lock™ 2, Hole In One®

Snap-Lock-Group
 
Two-Timer-Flipper

K.I.S.S.® Two-Timer™ folder

What it is: An ingenious two-blade version of the K.I.S.S.® knife, with a second pen knife blade plus the larger Tanto blade. Designed by Ed Van Hoy and Ed Halligan.

Benefits: Two blade functionality in a knife which is still lightweight and small in size.

How it works: The knife continues to use the original K.I.S.S.® single-side blade concept, with the addition of the hidden blade held in a recess machined into the larger Tanto blade. The skeletonized frame also acts as a frame lock when open, and a LAWKS® knife safety is incorporated.

Found on CRKT models: K.I.S.S.® Two-Timer™

Two-Timer-Flipper Two-Timer-Slot


PERSONAL ACCESSORIES


 
Turtle-Men-Sm

Turtle™ money clip knife

What it is: A small folding knife designed by Boyd Ashworth which is also a money clip, key fob, and pendant.

Benefits: Allows unobtrusive carry of a small knife for daily tasks and personal defense.

How it works: The 1.0" stainless steel blade is opened by a small tang on the blade. The money clip panel is removable, and can be replaced with a colored scale (provided) and worn on a neck chain (not included).

Found on CRKT models: Turtle™

Turtle-Men-Sm Turtle-Neck-Pink-Sm
 
Gekkota-Keychain-CU-Sm

Gekkota™ Pocket money clip knife and tool

What it is: A small folding knife and multitool with bottle opener and screwdriver tip, designed by Launce Barber and Tom Stokes.

Benefits: Allows unobtrusive carry of a small knife and with tools for daily tasks and personal defense.

How it works: The 1.375" stainless steel blade is opened by a small tang extension on the blade. The bottle opener/screwdriver opens by a tang at the opposite end of the frame. A money/pocket clip is included, as is a folding key chain loop.

Found on CRKT models: Gekkota™ Pocket

Gekkota-Keychain-CU-Sm Gekkota-Opener-Sm
 
2010-Gekkota-Grp-Med

Gekkota™ golf tool

What it is: A small divot fork with bottle opener, screwdriver tip, ball marker and money clip, designed by Launce Barber and Tom Stokes.

Benefits: Handy and complete golf tool in a compact package.

How it works: The divot fork opens by a small tang on one side. The bottle opener/screwdriver opens by a tang at the opposite end of the frame. A money/pocket clip is included, as is a folding key chain loop. A magnetic insert on the frame holds a flat stainless steel ball marker securely.

Found on CRKT models: Gekkota™ Golf

2010-Gekkota-Grp-Med
 

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